Uzな、以う0VrzVF = VzUreMaxeDr. Ayser MuneerTurbomachinesExample (5-2)An inward flow reaction turbine is supplied with water at a rate of (600 Vsec) with a3 velocity of flow of (2 m/sec). the velocity of periphery and velocity of whirl at inletare 24 m/sec and 18 m/sec respectively. Assuming radial discharge at outlet and thevelocity of flow to be constant, find;1- Vane angle at inlet, and2- Head of water on the wheel.VSolutionVnQ = 0.6 m/sec, Vn=2m/sec, uj=24 m/sec,Vu=18m/sec, V1=Vr2 m/sec

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Answered: Dr. Ayser Muneer Turbomachines Example…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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4. to convert the kinetic energy of water into the mechanical shaft energy. Water enters the turbine, at the inlet, with the velocity Vin = 40m/s and the mass flow rate m=1,000kg/s. Water exits the Vi,z40ms turbine with a negligible velocity, say, Vout = 0 m/s.The efficiency of m - loooly/s Figure on the right shows a hydraulic turbine designed HzO HzO the turbine is 75 %. Potential energy and flow work can be ignored. 4а. Please calculate the specific kinetic energy of water entering the turbine ( ɛr or ke; in J/kg). 4b. Please calculate the rate of total kinetic energy of the water flow ( É̟ or KĖ ; in J/s or W) 4с. Please determine the mechanical power output of this turbine (Wou; in W or kW). 4d. Please determine how much mechanical energy would this turbine generate during an hour
identifuy the limitations that exist within different types of water turbine
Drive Velocity Triangle For Axial Mixed Flow For Francis Turbine.
3. The power output is 30 hp to a centrifugal pump that is discharging 900 GPM at which operates at 180 rpm against a head 120 ft., 220Volts, 3 phase, 60Hz. If the pump is modified to operate at 120 rpm, assuming its efficiency is constant, determine the discharge in GPM, the theoretical head it imparts to the liquid and the power input to the pump 4. A fan is used to provide ventilation in a tunnel requires a 3-kW electric motor to deliver 360 m³/hr. at a static pressure of 300mm of water has operated at speed of 500 rpm. It was later found out that the air to be delivered needs to be increased to a 420 m³/hr. If the fan size remains constant find the pressure in meters of water.
Differentiate between Impulse and reaction turbine.
3. Describe the different parts of radial flow reaction turbine.
For two row velocity compounded simple impulse turbine wheel derive the expressions for Diagram Power and Diagram Efficiency and also prove that : i. (P )max = 8 Cb? ii. ( na )max = Cos'ai
2. A centrifugal pump consists out of an impeller, diffuser and casing and is powered by 300 kW (shaft power) and rotates at 96.3 rad/s. The flow rate generated by the machine is54.7 Kilo-litres/min. The impeller blade inlet angle and width is 23° and 180 mmrespectively. The blades occupy 12% of the impeller area and the water is assumed toenter the impeller radially. Suction and delivery pipes are equal in size. Determine:2.1. The impeller inlet (i) diameter and inlet blade velocity. (Hint - Substitution: Vfi in terms of Di and Ui in terms of Di both sub into Tan of Blade inlet angle, only unknown is then solving for Di2) 2.2 If the pump has a mechanical efficiency of 80%, calculate the blade velocity at outlet (Uo) and outlet whirl velocity Vwo. Assume the blade exit angle equal to the guide vane angle. (Hint - Substitution: Write Vwo in terms of Uo sub in Euler equation only unknown then is solve for Vwo 2.3 Impeller outer diameter. 2.4 If the flow through velocity is consistent…
3. Calculate the BHP of the system feed pump with the described details: Total feed water mass flow rate = 100,000 Ib/hr Superheater Outlet pressure: 600 psig DC heater pressure = 50 psig, !3! • Assume: pump efficiency of 70%, water is at saturated conditions, ignore head pressure from DC heater, and no friction loss going to feed pump. What is the steam flow required with the above BHP and a Stream Rate of 25 lbs / HP-hr (this includes Ah of steam into and out of the turbine and turbine efficiency)
QUESTION 1:A centrifugal pump consists out of an impeller, diffuser and casing and is powered by 300kW (shaft power) and rotates at 96.3 rad/s. The flow rate generated by the machine is54.7 Kilo-litres/min. The impeller blade inlet angle and width is 23° and 180 mmrespectively. The blades occupy 12% of the impeller area and the water is assumed toenter the impeller radially. Suction and delivery pipes are equal in size.Determine:1.1The impeller inlet (i) diameter and inlet blade velocity.(Hint - Substitution: ln in terms of D and U, in terms of D, both sub into Tan of Blade inlet angle,only unknown is then solving for Dz)1.2.If the pump has a mechanical efficiency of 80%, calculate the blade velocity atoutlet (U.) and outlet whirl velocity Vw.. Assume the blade exit angle equal to theguide vane angle. (Hint - Substitution: Write Vw in terms of U, sub in Euler equation onlyunknown then is solve for Vwo)1 3Impeller outer diameter.1.4,If the flow through velocity is consistent through the…
4. A conventional hydropower station in a dam impounds 390 ft of fresh water and has a flow of 24,720 cubic feet per second. a. What is the maximum possible amount of power (in MW) that can be developed by a turbine installed at this station? b. Calculate the power specific speed Nóp assuming a synchronous speed of 90 rpm and determine the appropriate turbine type (Pelton, Francis, or Kaplan) for this installation. c. If the turbine efficiency is 92.7%, what is the actual power developed (in MW)?
na nozzle efficiency of a Pelton turbine is 90%. Find the velocity of water at the 0zzle exit if the head is 180 meters. A. 56.4 m/s A 65.4 m/s C. 75.4 m/s D. 86.4 m/s

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